{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0x45df51213d74b9cf6524340e61a40471a88947bbc19a4e5c4c9eb8ee421ffd0e",
    "signature": "0x0b20d089362df8898adff1babb91d155dc6f9301f2bcd519e7c295085119d4e173b08868f79db7ed94d240dc81aefb46efcd2d471720f9701aea90e9fe75ef2f1b",
    "signer": "0x6245d270201FE6e26477efA986E8C4035bF65C71",
    "userId": "36222594"
  }
}